frame1.java

Jbuilder100个例子 都是经典例子 对大家学习Jbuilder非常有帮助

package menubar;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Frame1 extends JFrame {
  JPanel contentPane;
  MenuBar menuBar1 = new MenuBar();
  Menu menu1 = new Menu();
  MenuItem menuItem1 = new MenuItem();
  Menu menu2 = new Menu();
  CheckboxMenuItem checkboxMenuItem1 = new CheckboxMenuItem();
  Menu menu3 = new Menu();
  MenuItem menuItem2 = new MenuItem();
  MenuItem menuItem4 = new MenuItem();
  MenuItem menuItem5 = new MenuItem();
  Menu menu4 = new Menu();
  MenuItem menuItem3 = new MenuItem();
  MenuItem menuItem6 = new MenuItem();
  FlowLayout flowLayout1 = new FlowLayout();
  Label label1 = new Label();

  /**Construct the frame*/
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(flowLayout1);
    this.setResizable(false);
    this.setSize(new Dimension(326, 156));
    this.setTitle("主菜单演示程序");
    menu1.setLabel("文件");
    menuItem1.setLabel("退出");
    menuItem1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        menuItem1_actionPerformed(e);
      }
    });
    menu2.setLabel("视图");
    checkboxMenuItem1.setLabel("显示文本");
    checkboxMenuItem1.setState(true);
    checkboxMenuItem1.addItemListener(new java.awt.event.ItemListener() {
      public void itemStateChanged(ItemEvent e) {
        checkboxMenuItem1_itemStateChanged(e);
      }
    });
    menu3.setLabel("改变背景色");
    menuItem2.setLabel("黑色");
    menuItem2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        menuItem2_actionPerformed(e);
      }
    });
    menuItem4.setLabel(" 红色");
    menuItem4.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        menuItem4_actionPerformed(e);
      }
    });
    menuItem5.setLabel(" 白色");
    menuItem5.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        menuItem5_actionPerformed(e);
      }
    });
    menu4.setLabel("改变标题");
    menuItem3.setLabel("中文");
    menuItem3.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        menuItem3_actionPerformed(e);
      }
    });
    menuItem6.setLabel(" 英文");
    menuItem6.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        menuItem6_actionPerformed(e);
      }
    });
    label1.setText("主菜单演示程序");
    menuBar1.add(menu1);
    menuBar1.add(menu2);
    menu1.add(menuItem1);
    menu2.add(menu3);
    menu2.add(menu4);
    menu2.addSeparator();
    menu2.add(checkboxMenuItem1);
    menu3.add(menuItem2);
    menu3.add(menuItem4);
    menu3.add(menuItem5);
    menu4.add(menuItem3);
    menu4.add(menuItem6);
    contentPane.add(label1, null);
    setMenuBar(menuBar1);
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void menuItem1_actionPerformed(ActionEvent e) {
System.exit(0);
  }

  void menuItem2_actionPerformed(ActionEvent e) {
  contentPane.setBackground(Color.black);
  }

  void menuItem4_actionPerformed(ActionEvent e) {
  contentPane.setBackground(Color.red);
  }

  void menuItem5_actionPerformed(ActionEvent e) {
  contentPane.setBackground(Color.white);
  }

  void menuItem3_actionPerformed(ActionEvent e) {
  this.setTitle("主菜单演示程序");
  }

  void menuItem6_actionPerformed(ActionEvent e) {
  this.setTitle("Menu Bar Pro");
  }

  void checkboxMenuItem1_itemStateChanged(ItemEvent e) {
  if (checkboxMenuItem1.getState())
    label1.setVisible(true);
  else
    label1.setVisible(false);

  }
}